
#include "calculator.h"

int main(void)
{

    string s1;
    while (true)
    {
        cin >> s1;
        if (s1[0] == 'E' || s1[1] == 'O' || s1[2] == 'F')
        {
            break;
        }
        total_calcu(s1);
    }
}
